If the fr_FR/addchapter.sce file does not exist, files are not taken from english as reference
Reported by Sylvestre LEDRU
For example, if I write the new module "xml"
I am writing the help page
modules/xml/help/en_US/*
I have a file
modules/xml/help/en_US/addchapter.sce
but
modules/xml/help/fr_FR/addchapter.sce
does not exist
English files, as references if the french does not exist, won't be copy.